Originally Posted by op101
And also, even if the pituitary hormone comment wasn't EXACTLY correct, it's more or less right (for a manga). Anterior pituitary does secrete growth hormone
He's pretty much saying that if the kids aren't normally big (ie if their GH isn't normally raised, who knows how Giant physiology works :P) then they've been experimented on to make them big (increase their GH). Sorry for the unnecessary rant, med student nearing exams lol :/
Just an hint for the future: ACt already graduated from Medicine, so if he made the comment, he knows damn well why.
And even I can tell why he did it, since I had to study metabolism: ACTH, ADH, LH, FSH, TSH, beta-endorphin, prolactin and oxytocin are also pituitary hormones and their over-estimulation would have different results.
But yes, the hormone in question must be GH, but I don't know who goofed up, the translators or Oda himself.